25238315252 has 24 divisors (see below), whose sum is σ = 45276983136. Its totient is φ = 12303109728.

The previous prime is 25238315251. The next prime is 25238315281. The reversal of 25238315252 is 25251383252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25238315251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40043 + ... + 228210.

It is an arithmetic number, because the mean of its divisors is an integer number (1886540964).

Almost surely, 2^25238315252 is an apocalyptic number.

It is an amenable number.

25238315252 is a deficient number, since it is larger than the sum of its proper divisors (20038667884).

25238315252 is a wasteful number, since it uses less digits than its factorization.

25238315252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268847 (or 268845 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The spelling of 25238315252 in words is "twenty-five billion, two hundred thirty-eight million, three hundred fifteen thousand, two hundred fifty-two".